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Virty [35]
3 years ago
9

9. Solve the equation. (1 point) 4x = 68 64 72 12 17

Mathematics
1 answer:
Oksana_A [137]3 years ago
5 0

Answer:

17

Step-by-step explanation:

<em>or</em><em>,</em><em> </em><em> </em>4x= 68

<em>or</em><em>,</em><em> </em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>6</em><em>8</em><em>/</em><em> </em><em>4</em>

<em> </em><em> </em><em> </em><em>:</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>7</em>

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Step-by-step explanation:

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3х -10 y =-70<br> 4х +9y = 63
Katena32 [7]

Answer:

(0,7)

Step-by-step explanation:

(I'm assuming you have to solve the system of equations)

3x -10y = -70

4x +9y = 63

Solving by elimination.

Eliminate x first, so we need the x-component of both equations to have the same number but opposite sign. So i'm going to multiply the first by -4 and the second by +3.

//I could have also done +3 to first and -4 to second

-4(3x -10y = -70)

3(4x +9y = 63)

-12x +40y = 280

12x +27y = 189

Add the equations //x's cancel

67y = 469

Divide both side by 67, y=7

Plug in y into any original equation to solve to x

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3x -70 = -70

3x = 0

x=0

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3 years ago
I need to know if this equation would be true or false​
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Answer:

False

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